Process for the preparation of cinnamic acid derivatives

Details Process for the preparation of cinnamic acid derivatives Process for the preparation of cinnamic acid derivatives

C - Chemistry, Metallurgy

07

C

C07C 69/734 (2006.01) C07C 51/367 (2006.01) C07C 59/64 (2006.01) C07C 67/31 (2006.01) C07C 67/343 (2006.01) C07C 231/12 (2006.01) C07C 235/34 (2006.01) C07C 253/30 (2006.01) C07C 255/37 (2006.01)

Patent

CA 2093294

Process for the preparation of cinnamic acid derivatives A b s t r a c t Cinnamic acid derivatives, in particular 2-ethylhexyl p-methoxycinnamate and 2-isoamyl p-methoxycinnamate, are prepared avoiding particular effort for workplace hygiene and ecology by using bromoaromatic and acrylic acid derivatives in the presence of palladium catalysts and a large excess of phosphane (based on the palladium), in the presence of an inorganic base and in the presence of alcohols and/or a phase transfer catalyst. Le A 28 859-Foreign countries

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